CHEMISTRY WORKSHEET # 2 MOLE PROBLEMS—THE MOLE …

These weights can be found on the periodic table. EXAMPLE: Calculate the molar mass (gram molecular weight) of a mole of iodine, I2. Round to 2 decimal places. 2 I = 2 X (126.90) = 253.80 g I2/mol. EXAMPLE: Calculate the molar mass (gram formula weight) of a mole of aluminum sulfate, Al2(SO4)3. Round to 2 decimal places. 2 Al = 2 X (26.98) = 53. 96 ................
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